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Finding the Fourth Proportional to 269,513.10, 404,270.85 and 69,819.30

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Solution

The fourth proportional to 269,513.10, 404,270.85 and 69,819.30 is: 104,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,513.10 : 404,270.85 = 69,819.30 : x
  2. Step 2: Convert to fraction form
    269,513.10/404,270.85 = 69,819.30/x
  3. Step 3: Cross multiply
    269,513.10x = 404,270.85 × 69,819.30
  4. Step 4: Simplify right side
    269,513.10x = 28,225,907,757.41
  5. Step 5: Solve for x
    x = 28,225,907,757.41/269,513.10
  6. Step 6: Final answer
    x = 104,729.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.